Saw-set.



No. 728,958. Q PATENTBD MAY 26, 1903. G. MORRILL, DEGD.

S. O. MOERILL, EXEOUTRIX. v

SAW SET.

APPLICATION nun mm 4, 1902.

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H0 MODEL.

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WITNESSES: Chadd? ZZ/NVENTOR.

.fleaeas r h Q lggriill Lam Z @ML' V A TTOHNEY UNTThn STATES PatentedMay 26, 1903.

PATENT @rricn.

SARAH C. HORRILL, OF NEW YORK, N. Y., EXEGUTRIX OF CHARLES MORRILL,DECEASED.

SAW-SET.

SPECIFICATION forming part Of Letters Patent No. 728,958, dated May 26,1903.

Application filed June 4, 1902.

T0 (LZZ whom it may concern:

Be it known that CHARLES MoRRILL, deceased, late of the city of NewYork, borough of Manhattan, and State of New York, did invent certainnew and useful Improvements in Saw-Sets, of which the following is aspecification.

This invention relates to a rotative eccentric gage, a guide-plane, anda specially-arranged rotary anvil for saw-sets, all of which will befully described hereinafter.

The invention consists of a rotative anvil contained within a depressedseat, the latter integral with the head and a guide-plane thereof, theaxis of the anvil arranged perpendicularly to the axis of a movablesetting device and working in conjunction with an eccentrically-rotativegage mounted upon the body of the saw-set.

In the drawings, Figure 1 represents a side elevation of a saw-set,showing the head and a portion of the stock in section. Fig. 2 is aninverted plan view of the rotative eccentrio gage. Fig. 3 is a plan viewof the head of the saw-set, a portion of the stock being broken away.Fig. 4 is a detail section of the head, showinga modified arrangement ofrotative eccentric gage. Fig. 4" represents an end View of the head ofthe saw-set with a portion thereof broken away and having the anvilremoved, thereby showing the depressed anvil-seat and the ends of theguideplane extending from either side thereof. Figs. 5, 6, and 7 aremodified forms of the eccentric gage.

Similar letters refer to similar parts throughout the drawings, inwhicha represents the stock of the saw-set, and b represents the head ofthe saw-set, the depending portion 0 thereof forming, as it does, thedepressed anvil-seat d and saw-guide plane e. To the underneath of theforward portion of the stock a, is properly secured the rotativeeccentric gage f.

It is not necessary to dwell upon the operation of the rotary anvil g,as this particular feature connected herewith is well known in the stateof the art. It will be obvious that when the rotary anvil shall havebeen arranged as herein shown the saw-blade when Serial No. 110,215. (Nomodel.)

operated upon will be in tangential contact with the perimeter of theanvil. To prevent the saw-blade from swaying backward and forward whilesetting the teeth thereof, the head I) of the saw-set is provided withthe guide-plane e, with which the broad side of the saw-blade engages,thus insuring and maintaining the steadiness required. The eccentricgagef is adapted to counteract the backward thrust of the saw-bladewhenever the plunger shall have been brought to play upon the tooth. Itwill be obvious that many forms of eccentric gages may beincorporatedsuch, for instance, as those shown in Figs. 4, 5, 6, and 7.

In Fig. 4c is shown the eccentric gagefarranged at an angle, thusenabling the operator to set the teeth of band or jig saws as well asthe ordinary handsaw. In Fig. 5 is shown the eccentric gage polygonalform.

The important feature of the polygonal or circular shapedrotatively-mounted eccentric gage will be indispensable in a tool ofthis character, for it will be observed that in many cases the operatorwill be compelled to set the teeth of his saw in order that it mayperform its function consistent with the character of the wood to beoperated upon. In order to set the teeth of the saw properly, it will benecessary to adjust the eccentric gage so as to regulate the back thrustof the blade, and thereby giving the proper set to the teeth when theplunger shall have been brought forward.

The operator must not lose sight of the fact that when Wet, green, orsoft wood is to be operated upon the set of the teeth will of course bedeeper than they would have to be it hard wood is to be operated upon,and in order that the operator should not err in judging the exactposition of the eccentric gage each side of the polygon or portion ofits circumference of the eccentric gages ff ff will be indicated in anymanner desirable. With a saw thus equipped any inexperienced mechaniccould easily and properly adjust the gage without depending upon hisjudgment. It will therefore be observed that it will not require thehand of the skilled mechanic to operate this tool properly andscientifically, thus obviating the objectionable featuresof saw-setsheretofore made.

The guide-plane herein referred to may be used in connection with anyform of anvil. I therefore do not confine myself to the exact form ofanvil in connection with which the guide-plane may be used.

It is known that rotative anvils have heretofore been used in connectionwith saw-sets and having their axis arranged parallel and oblique to themovable setting device; but in all saw-sets heretofore made there doesnot appear suflicient surface for the saw to rest against when settingthe teeth thereof. To obviate this objection, the head of the sawset isprovided with the guide-plane, thus preventing the saw-blade fromtilting when setting the teeth, as it does when sufficientbearing-surface is not provided therefor. It is also known thateccentric gages have heretofore been used in connection with variousdevices; but it is not known that they have ever before been claimed incombination with a saw-set, as herein shown.

Having thus described the invention, what is claimed as new, and desiredto be secured by Letters Patent, is-

1. In a saw-set the combination consisting of a movable setting devicethe rotary concentric anvil provided with an annular beveled anvil face,the axis of said anvil arranged perpendicularly to the axis of saidmovable setting device, the depressed seat adapted to receive said anviland the guide integral with said depressed anvil-seat sub stantially asdescribed.

2. In a saw-set the combination consisting of the rotary anvil, thedepressed anvil-seat, the guide-plane, the rotatively-mounted eccentricgage and movable setting device substantially as shown and described.

Signed at New York city, in the borough of Manhattan and State of NewYork, this 29th day of May, 1902.

SARAH C. MORRILL, Ewecutria: of Charles lllorm'll, deceased.

Witnesses:

WM. 0. MORRILL, M. E. CARMIOHAEL.

